European alternatives to Slack

Looking for collaboration tools that offer more privacy, simpler workflows or a European footprint? Explore alternatives to Slack that provide modern team messaging, organized channel structures, and seamless integrations — without depending on a U.S.-based communication platform.

Showing 11 results

Wire

🇨🇭
Switzerland

Wire offers team messaging, calls and file sharing across desktop and mobile devices. The provider…

Stackfield

🇩🇪
Germany

Stackfield combines team conversations, tasks, project views and shared documentation. The provider describes browser-side end-to-end…

Mattermost by Stackhero

🇫🇷
France

Stackhero provides managed hosting for Mattermost on a dedicated private virtual machine. Mattermost supplies team…

Rocket.Chat

International

Rocket.Chat brings channels, direct messages, threaded discussions and file sharing into a team workspace. It…

Private Discuss

🇫🇷
France

Video meetings and team collaboration Private Discuss combines video meetings, webinars, instant messaging and file…

Nextcloud

🇩🇪
Germany

Nextcloud is an open-source platform for file storage, synchronization and collaboration. It supports user shares,…

Nozbe

🇵🇱
Poland

Nozbe organizes team work around projects, tasks and comments. Assign work, add files and discuss…

Mattermost

International

Mattermost is an open-core collaboration platform for channels, direct messages, files and technical workflows. It…

ginlo Business

🇩🇪
Germany

ginlo Business combines individual and group chats, file sharing, announcement channels and audio and video…

Element

International

Element provides messaging and collaboration built on the open Matrix standard. Rooms, calls and file…

Fleep

🇪🇪
Estonia

Fleep combines direct and group conversations with tasks, a pinboard and shared files. Its email…

FAQ Slack

Slack is a team communication platform that organizes conversations into channels and direct messages. It allows employees to exchange messages, share files and connect third-party tools to streamline daily collaboration.
Companies often explore alternatives due to concerns about data hosting in the U.S., the desire for open-source solutions, lower pricing, stronger privacy guarantees or a preference for collaboration platforms fully hosted in Europe.
Yes. Many European tools provide real-time messaging, channels, video calls, file sharing, integrations and mobile apps — often with stronger data protection policies and GDPR-compliant hosting.
Most modern team messengers offer integration with popular cloud services, productivity apps, ticketing systems and developer platforms. Some solutions also allow self-hosted storage for increased control.
Important factors include data privacy, hosting location, pricing, security audits, available integrations, mobile and desktop support, and whether the platform offers open-source or self-hosted options.
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